懂门儿 dǒng mén r

DEFINITIONS

  1. one who knows his business
  2. professional
  3. expert
  4. au fait

CHARACTERS

懂 dǒng
HSK 2
understand, comprehend
门 mén
HSK 2
gate, door, entrance, opening
儿 r
HSK 1
son, child; KangXi radical 10